Avalanches and plastic flow in crystal plasticity: an overview

S Papanikolaou, Y Cui, N Ghoniem - Modelling and Simulation in …, 2017 - iopscience.iop.org
Crystal plasticity is mediated through dislocations, which form knotted configurations in a
complex energy landscape. Once they disentangle and move, they may also be impeded by …

Multiscale modelling of irradiation damage behavior in high entropy alloys

F Tan, L Li, J Li, B Liu, PK Liaw, Q Fang - Advanced Powder Materials, 2023 - Elsevier
The increasingly harsh environment of the nuclear reactors and the insurmountable flaws of
in-service materials have created an urgent need for the development of the brand-new …

Atomistically-informed hardening and kinetics models of helium bubble in irradiated tungsten

C Ji, J Hu, Z Zhuang, Y Cui - International Journal of Plasticity, 2023 - Elsevier
In fusion reactor environment, helium bubble acts as a crucial inducement to the
performance degradation of plasma facing tungsten, leading to irradiation hardening and …

Irradiation hardening behavior of high entropy alloys using random field theory informed discrete dislocation dynamics simulation

Y Chen, S Wang, H Feng, W Li, B Liu, J Li, Y Liu… - International Journal of …, 2023 - Elsevier
High entropy alloys (HEAs) exhibit outstanding radiation resistance over traditional alloys
owing to severe lattice distortion, and therefore, would be regarded as candidate materials …

Atomically-informed dislocation dynamics model for prediction of void hardening in irradiated tungsten

G Liu, K Wu, P Yu, X Cheng, J Shi, C Ye, Y Mao… - International Journal of …, 2023 - Elsevier
Nanometric voids are one of the fundamental defects generated by neutron irradiation in
fusion environment, which impede dislocation motion and cause hardening of plasma facing …

Improved irradiation resistance of accident-tolerant high-strength FeCrAl alloys with heterogeneous structures

KS Mao, CP Massey, Y Yamamoto, KA Unocic… - Acta Materialia, 2022 - Elsevier
Post–neutron irradiation examination is performed on advanced accident-tolerant fuel (ATF)
cladding iron-chromium-aluminum (FeCrAl) alloys with∼ 10–13at.% Cr,∼ 10–12 at.% Al,∼ …

Experiments and/or crystal plasticity finite element modeling of the mechanical properties of pristine and irradiated tungsten single crystal

J Shi, G Liu, K Wu, P Yu, H Zhu, G Zhao… - International Journal of …, 2022 - Elsevier
Tungsten is used for vital applications in nuclear industry, particularly in experimental fusion
reactors like ITER. Experimental evaluation of the irradiation-induced hardening is usually …

[HTML][HTML] Atomistic analysis of the mechanisms underlying irradiation-hardening in Fe–Ni–Cr alloys

A Ustrzycka, FJ Dominguez-Gutierrez… - International Journal of …, 2024 - Elsevier
This work presents a comprehensive examination of the physical mechanisms driving
hardening in irradiated face-centered cubic FeNiCr alloys. The evolution of irradiation …

A coupled dislocation dynamics-continuum barrier field model with application to irradiated materials

Y Cui, G Po, NM Ghoniem - International Journal of Plasticity, 2018 - Elsevier
A new computational methodology for 3-dimensional (3D) Discrete Dislocation Dynamics
(DDD) in barrier-strengthened materials is developed. We couple the discrete 3D DDD …

[HTML][HTML] Discrete dislocation plasticity HELPs understand hydrogen effects in bcc materials

H Yu, A Cocks, E Tarleton - Journal of the Mechanics and Physics of Solids, 2019 - Elsevier
In an attempt to bridge the gap between atomistic and continuum plasticity simulations of
hydrogen in iron, we present three dimensional discrete dislocation plasticity simulations …